¿Cómo publicar más parámetros con el código de carga de imágenes en iOS?

Hola, estoy cargando la imagen en el servidor php y cargué con éxito con la ayuda de este código

- (NSString*)uploadData:(NSData *)data toURL:(NSString *)urlStr:(NSString *)_userID { // File upload code adapted from http://www.cocoadev.com/index.pl?HTTPFileUpload // and http://www.cocoadev.com/index.pl?HTTPFileUploadSample NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:urlStr]]; [request setHTTPMethod:@"POST"]; // NSString* = [NSString stringWithString:@"0xKhTmLbOuNdArY"]; NSString *stringBoundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",stringBoundary]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; // [body appendData:[[NSString stringWithFormat:@"userId=%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"image%@.jpg\"\r\n", _userID] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:data]]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; // setting the body of the post to the reqeust [request setHTTPBody:body]; // now lets make the connection to the web NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; NSLog(@"%@",returnString); return returnString; } 

Ahora quiero enviar mi ID de usuario también en el lado del derver, ¿cómo puedo enviar mi ID de usuario? Intenté hacerlo de esta manera

 [body appendData:[[NSString stringWithFormat:@"userId=%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]]; 

pero en vano, intenté enviarlo de esta manera

 [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"image%@.jpg\"; userId=\"%@\"\r\n", _userID, _userID] dataUsingEncoding:NSUTF8StringEncoding]]; 

pero, de nuevo, en vano, ¡tan amablemente, guíame qué hacer!

Si no ha pensado en utilizar AFNetworking , debería hacerlo. Hace que tratar con servicios web sea mucho más fácil. He hecho algo similar a lo que creo que quieres hacer. Escribí una clase personalizada para activar las solicitudes de red. Aquí tienes: NetworkClient.h

 /* NetworkClient.h Created by LJ Wilson on 2/3/12. Copyright (c) 2012 LJ Wilson. All rights reserved. License: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #import  extern NSString * const APIKey; @interface NetworkClient : NSObject +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params block:(void (^)(id obj))block; +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest block:(void (^)(id obj))block; +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest alertUserOnFailure:(BOOL)alertUserOnFailure block:(void (^)(id obj))block; +(void)processFileUploadRequestWithURL:(NSString *)url andParams:(NSDictionary *)params fileData:(NSData *)fileData fileName:(NSString *)fileName mimeType:(NSString *)mimeType block:(void (^)(id obj))block; +(void)handleNetworkErrorWithError:(NSError *)error; +(void)handleNoAccessWithReason:(NSString *)reason; @end 

NetworkClient.m

 /* NetworkClient.m Created by LJ Wilson on 2/3/12. Copyright (c) 2012 LJ Wilson. All rights reserved. License: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #import "NetworkClient.h" #import "AFHTTPClient.h" #import "AFHTTPRequestOperation.h" #import "SBJson.h" NSString * const APIKey = @"APIKEY GOES HERE IF YOU WANT TO USE ONE"; @implementation NetworkClient +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params block:(void (^)(id obj))block { [self processURLRequestWithURL:url andParams:params syncRequest:NO alertUserOnFailure:NO block:^(id obj) { block(obj); }]; } +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest block:(void (^)(id obj))block { [self processURLRequestWithURL:url andParams:params syncRequest:syncRequest alertUserOnFailure:NO block:^(id obj) { block(obj); }]; } +(void)processURLRequestWithURL:(NSString *)url andParams:(NSDictionary *)params syncRequest:(BOOL)syncRequest alertUserOnFailure:(BOOL)alertUserOnFailure block:(void (^)(id obj))block { // Default url goes here, pass in a nil to use it if (url == nil) { url = @"http://www.mydomain.com/mywebservice"; } NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:params]; [dict setValue:APIKey forKey:@"APIKey"]; NSDictionary *newParams = [[NSDictionary alloc] initWithDictionary:dict]; NSURL *requestURL; AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:requestURL]; NSMutableURLRequest *theRequest = [httpClient requestWithMethod:@"POST" path:url parameters:newParams]; __block NSString *responseString = [NSString stringWithString:@""]; AFHTTPRequestOperation *_operation = [[AFHTTPRequestOperation alloc] initWithRequest:theRequest]; __weak AFHTTPRequestOperation *operation = _operation; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { responseString = [operation responseString]; id retObj = [responseString JSONValue]; // Check for invalid response (No Access) if ([retObj isKindOfClass:[NSDictionary class]]) { if ([[(NSDictionary *)retObj valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } else if ([retObj isKindOfClass:[NSArray class]]) { if ([(NSArray *)retObj count] > 0) { NSDictionary *dict = [(NSArray *)retObj objectAtIndex:0]; if ([[dict valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } } block(retObj); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failed with error = %@", [NSString stringWithFormat:@"[Error]:%@",error]); block(nil); if (alertUserOnFailure) { // Let the user know something went wrong [self handleNetworkErrorWithError:operation.error]; } }]; [operation start]; if (syncRequest) { // Process the request syncronously [operation waitUntilFinished]; } } #pragma mark - processFileUpload +(void)processFileUploadRequestWithURL:(NSString *)url andParams:(NSDictionary *)params fileData:(NSData *)fileData fileName:(NSString *)fileName mimeType:(NSString *)mimeType block:(void (^)(id obj))block { // Default url goes here, pass in a nil to use it if (url == nil) { url = @"http://www.mydomain.com/mywebservice"; } NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithDictionary:params]; [dict setValue:APIKey forKey:@"APIKey"]; NSDictionary *newParams = [[NSDictionary alloc] initWithDictionary:dict]; AFHTTPClient *client= [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:url]]; NSMutableURLRequest *myRequest = [client multipartFormRequestWithMethod:@"POST" path:@"" parameters:newParams constructingBodyWithBlock: ^(id formData) { [formData appendPartWithFileData:fileData name:fileName fileName:fileName mimeType:mimeType]; }]; AFHTTPRequestOperation *_operation = [[AFHTTPRequestOperation alloc] initWithRequest:myRequest]; __weak AFHTTPRequestOperation *operation = _operation; __block NSString *responseString = [NSString stringWithString:@""]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { responseString = [operation responseString]; id retObj = [responseString JSONValue]; // Check for invalid response (No Access) if ([retObj isKindOfClass:[NSDictionary class]]) { if ([[(NSDictionary *)retObj valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } else if ([retObj isKindOfClass:[NSArray class]]) { if ([(NSArray *)retObj count] > 0) { NSDictionary *dict = [(NSArray *)retObj objectAtIndex:0]; if ([[dict valueForKey:@"Message"] isEqualToString:@"No Access"]) { block(nil); [self handleNoAccessWithReason:[(NSDictionary *)retObj valueForKey:@"Reason"]]; } } } block(retObj); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Failed with error = %@", [NSString stringWithFormat:@"[Error]:%@",error]); block(nil); // if (alertUserOnFailure) { // // Let the user know something went wrong // [self handleNetworkErrorWithError:operation.error]; // } }]; [operation start]; } #pragma mark - Error and Access Handling +(void)handleNetworkErrorWithError:(NSError *)error { NSString *errorString = [NSString stringWithFormat:@"[Error]:%@",error]; // Standard UIAlert Syntax UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"Connection Error" message:errorString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [myAlert show]; } +(void)handleNoAccessWithReason:(NSString *)reason { // Standard UIAlert Syntax UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"No Access" message:reason delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [myAlert show]; } @end 

Algo de esto es específico de lo que hago. Todos mis servicios web usan una APIKey para mejorar la seguridad y todos hacen comprobaciones de seguridad antes de procesar cualquier solicitud. El cliente de red devolverá un NSDictionary o un NSArray según lo que devuelva el servicio web (en JSON).

Para usar la carga de imágenes, debería llamar esto a su VC de esta manera (use tantos parámetros como necesite):

 NSData *imageData = UIImagePNGRepresentation(myImage); NSString *fileName = @"MyFileName.png"; NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: @"Param1", @"Param1Name", @"Param2", @"Param2Name", @"Param3", @"Param3Name", nil]; // Uses default URL [NetworkClient processFileUploadRequestWithURL:nil andParams:params fileData:imageData fileName:fileName mimeType:@"image/png" block:^(id obj) { if ([obj isKindOfClass:[NSArray class]]) { // Successful upload, do other processing as needed } }]; 

Siéntase libre de quitar lo que no necesita. Simplemente deje el aviso de copyright en su lugar.

Puedes intentar esto:

  [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",@"userId"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"%@",_userID] dataUsingEncoding:NSUTF8StringEncoding]];